/Engine/Source/Runtime/Engine/Classes/Kismet/GameplayStatics.h
Calculate view-projection matrices from a specified MinimalViewInfo and optional custom projection matrix
static void CalculateViewProjectionMatricesFromMinimalView ( const [FMinimalViewInfo](API\Runtime\Engine\Camera\FMinimalViewInfo) & MinimalViewInfo, const [TOptional](API\Runtime\Core\IO\TOptional)< FMatrix > & CustomProjectionMatrix, FMatrix & OutViewMatrix, FMatrix & OutProjectionMatrix, FMatrix & OutViewProjectionMatrix )